The attached document describes a pilot study at Brown University Summer 2007 on the efficacy of neurofeedback training on healthy college students. In this controlled study, subjects showed increased total scores and faster times in a maze task, and increased accuracy and faster reaction times in a visual working memory task, after neurofeedback training. Results suggest that neurofeedback may improve working memory and attention.
http://www.stresstherapysolutions.com/pubs/BrownU_Pilot_Study.pdf